Pith Number

pith:LSISF6O6

pith:2019:LSISF6O6NNWSB7VHH3BHBGTA7L

not attested not anchored not stored refs pending

ARCHANGEL: Tamper-proofing Video Archives using Temporal Content Hashes on the Blockchain

Alan Brown, Alex Green, Arindra Das, Daniel Cooper, Jared Keller, Jez Higgins, John Collomosse, John Sheridan, Mark Bell, Olivier Thereaux, Tu Bui

arxiv:1904.12059 v1 · 2019-04-26 · cs.CV · cs.AI · cs.CR · cs.DC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LSISF6O6NNWSB7VHH3BHBGTA7L}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:47:39.012916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c9122f9de6b6d20fea73ec2709a60fac896f3ed7344195f8da24f287f7f07fe

Aliases

arxiv: 1904.12059 · arxiv_version: 1904.12059v1 · doi: 10.48550/arxiv.1904.12059 · pith_short_12: LSISF6O6NNWS · pith_short_16: LSISF6O6NNWSB7VH · pith_short_8: LSISF6O6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LSISF6O6NNWSB7VHH3BHBGTA7L \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 5c9122f9de6b6d20fea73ec2709a60fac896f3ed7344195f8da24f287f7f07fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dd4042342b6907f0c7c51f6b04e5ee58d9224f06055cb97f640bc8a2d074233",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CR",
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-26T21:59:02Z",
    "title_canon_sha256": "3d5b0db487600608b5d629fb8e4ce7f42d23ca2106ebe1001f3ac737e8ec7600"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12059",
    "kind": "arxiv",
    "version": 1
  }
}